package Code.System;

public class SystemDemo1 {
    public static void main(String[] args) {

        //exit
        //状态码：0：表示虚拟机正常停止；非0：表示虚拟机异常停止
        //SystemDemo2.exit(1);
        //SystemDemo2.out.println("看看我执行了吗");

        //currentTimeMillis
        long time = System.currentTimeMillis();
        System.out.println(time);
    }
}
